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Fig. 4 | Diagnostic Pathology

Fig. 4

From: Triple malignancy (NET, GIST and pheochromocytoma) as a first manifestation of neurofibromatosis type-1 in an adult patient

Fig. 4

a Histopathology - NET G1, tumor with solid and nesting masses of monotonous small round cells. Cells have moderate amount of finely granular cytoplasm, small nucleoli and “salt and pepper” chromatin pattern. No mitotic figures are seen, HE staining, 100x. b Histopathology - GIST, the tumor cells show plump spindled cell morphology with minimal atypia, without mitotic figures. The cells are arranged in whorls or short intersecting fascicles, with frequent and prominent nuclear palisading, HE staining, 100x

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